Closure fastening means



May 14, 1935. s. QUISLING 2,000,983

CLOSURE FASTENING MEANS Filed Oct. 21, 1935 caused to mesh or toseparate;

'atented May 14, 1935 Sverre Quisling, Madison,

less Fastener Company,

Wis., assignor to Ho poration of Pennsylvania Application October 21,1933, Serial No. 694,669

4 Claims.

This invention is directed to improvements in that form of closure meansin which a series of like companion members intermesh and look whenbrought together at the proper angle.

The object of this invention is to provide looking members for closuresof this type which may be manufactured at a minimum of expense throughthe use of a simplified construction. These pieces can be made from acontinuous piece of metal or other rigid ribbon being cut out, formedand attached all in two or three operations automatically within amachine on the order of a stapling machine.

The invention in its present form, contemplates the provision of lockingmembers which, tho easy to secure upon the free edges of a flexibleclosure, when fastened to the closure are substantially rigid therewith.

Although a preferred embodiment of the invention is herein shown anddescribed, it is understood that changes may be made in its precisestructure without departing from the scope of what is claimed.

Referring to the drawing:

Figure 1 is a plan view, with parts being shown in section, of a deviceconstructed in accordance with the invention;

Figure 2 is a similar view, the method in which showing a slide and thelocking members are .Figure 3 is a section on the line -3--3 of Figure2;

Figure 4 is a sectional view showing the method of securing the lockingmembers to the free edges of a closure;'

Figure 5 is a perspective view of one of the locking members before itis secured to a closure; and,

Figure 6 shows the blank from which the locking members are formed.

Referring to the drawing in detail, locking members i are shown securedto the free edges of a flexible closure 2. In the formation of thelocking members predetermined lengths are cut from a roll of ribbon likerigid tape, the cuts being made diagonally across the face of thematerial and the cut off blank, shown at 3 Figure 6, having its oppositesides parallel. The ends are then bent up upon the lines i, and theremaining portion, .which is rectangular in shape, is bent upon itselfforming a U shaped clip having inwardly disposed prongs 5. A portion ofthe clip at the bottom of the U is pressed inwardly, as at 6, to such anextent that the portion 6 of one clip may readily enter within theopposite side of any companion clip.

to the edges of the closure,

Meadville, Pa., a. cormembers or clips I are secured by stamped outprong l, equidistant from one 5anda another and at an angle, other thanperpendicular to' the edge of the closure.

Clips upon one edge of the closure are oppositely disposed in angularrelation to the clips practically dicular may the greater the angl uponthe other edge. Altho any angle other than the perpenbe used, it will bereadily seenthat e from the perpendicular the greater the lockingstrength of the clips will be.

When the clips are interlocked, the pressed in portion 6, of a clip,

shown at 9 in Figure 1, has

entered into the opposite side of a clip l0, secured upon the other freeedge of the closure,

while the portions 6 of a clip ll, adjacent to clip ID has entered thefree side of 9. It will be seen that the side of each clip end of eachopposite clip. cured at three points to the edge of the closure H bearsupon the closed by means of the prongs 5 and l, to prevent an gularmovement in and the distance between width of a clip,

than the relation to the closure edge, the clips is much less a pull inopposite directions upon the closure will only tend to bind the clipsmore tightly together.

A slide a of conventional design and well known in the art, is used tointerlock and separate the clips by twisting the free edges of theclosure so as to cause the outward free ends of adjacent clips toseparate sumciently to receive or release a clip secured to the oppositeside of the closure.

Having thus described the invention, what I claim is:

1.. A fastener of the class described comprising a pair of flexiblestringers, and cooperating rows of interlocking members on the adjacentedges of said stringers, each member comprising a piece of sheetmaterial folded double and having parallel side edges and square cornersadjacent the folded end, the folded end at one corsaid member being tothe stringer edge so projects farther from positioned at an acute anglethat said open corner the stringer than the closed corner to permitinterlocking engagement of the open and closed corners of the oppositerows of members.

2. A fastener of the class described comprising a pair/of flexiblestringers and cooperating rows of interlocking'members of the adjacentAs each clip is seedges of said stringers; each member comprising anelongated piece of sheet material having its longer edges parallel, saidpiece being folded upon itself at about its site corner being open toreceive the closed corner of a similar member, the end opposite thefolded end overlapping the edge of the stringer and secured thereto,each member being posil. tioned at an acute mgle to the stringer so thatthe open corner projects farther from the stringer than the closedcorner to permit interlocking errgagement of the open and closed cornersof the opposite rows of members.

8. A fastener of the class described comprising a pair of flexibletapes, cooperating rows of interlocking members on the edges of saidtapes, each member comprising an elongated piece of sheet metal foldedupon itself and having parallel uninterrupted edges throughout itslength, the folded sides adjacent one of the corners at the folded endbeing indented close together and on the opposite side being spacedapart to provide a recess at least as wide as the thickness mid-portion,the folded and at one corner being'closed andat the oppoaeoaesa of thefirst corner, said members being arranged and secured on the stringer atan acute angle to the edge of the stringer and uniformly spaced apartwhereby the open and closed corners of the fastener members mayinterlock.

' 4. A fastener of the class described comprising a pair of flexiblestringers, and cooperating rows of interlocking members on the adjacentedges oi said stringers, each member compris material with I ing a flatelongated piece of sheet its longer edges parallel, bent upon itself toprovide arms for securing the member on the stringers, and a portionadjacent the bend projecting from the stringer and providing two cornersat the bend, the material of said arms adjacent one of said cornersbeing spaced apart to form a recess and at the other corner being benttogether to form a thin projecting corner adapted to fit into a recessof a. similar member, each member being secured in place at an acuteangle to the edge of the stringer such that said projection and recessare in alignment with the other recesses and projections of the series.

SVERRE QUISMNG.

